RediSem Ltd. Science Park Shatin Hong Kong Tel. +852 2607 4141 Fax. +852 2607 4140 Careers | Contact © Copyright 2017-2020 RediSem Ltd.
RED2421 is an advanced LED controller IC for high efficiency low-cost LLC converters with bipolar transistors and integrated PFC, intended for high frequency CC LED drivers up to 22W and pin compatible with RED2401.
Advanced LED Controller IC for high efficiency low-cost LLC converters with bipolar transistors and integrated PFC PSR - +/-5% Primary Side Regulation of LED current and voltage with no flicker 50% duty cycle, variable frequency control of resonant half-bridge Automatic dead-time control and capacitive mode protection Protection modes: a. Overload b. No-Load c. Over-temperature Low output capacitance allows live LED connection Very low output current ripple < 0.5% Small SOT23-6 IC package
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Code RED2421AL-TR7 Package SOT23-6 Tape & Reel
•	22W 550mA Low Cost LED driver (2387kB) •	22W 550mA Low Cost LED driver (2387kB) Reference Design  Check Application Notes Check Application Notes Order Order Low Power LED Controller for LLC Converters RED2421
•	RED2421  (345kB)   •	RED2421  (345kB)     •	10W 250mA LED driver (1210kB)       •	10W 250mA LED driver (1210kB)  •	10W 250mA LED driver (1210kB) LED Driver ICs
RediSem Ltd. Science Park Shatin Hong Kong Tel. +852 2607 4141 Fax. +852 2607 4140 Careers | Contact © Copyright 2017-2020 RediSem Ltd.
Low Power LED Controller for LLC Converters RED2421
RED2421 is an advanced LED controller IC for high efficiency low- cost LLC converters with bipolar transistors and integrated PFC, intended for high frequency CC LED drivers up to 22W and pin compatible with RED2401.
Advanced LED Controller IC for high efficiency low-cost LLC converters with bipolar transistors and integrated PFC PSR - +/-5% Primary Side Regulation of LED current and voltage with no flicker 50% duty cycle, variable frequency control of resonant half-bridge Automatic dead-time control and capacitive mode protection Protection modes: a. Overload b. No-Load c. Over-temperature Low output capacitance allows live LED connection Very low output current ripple < 0.5% Small SOT23-6 IC package
Key Features
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